Kevin Walek (Hosta Registrar) in
2009 on behalf of the
originator, Arie van Vliet of the
Netherlands, this cultivar is a
sport of H. 'Fortunei Hyacinthina'. It is a fast
growing, large size hosta about 24 inches high by 45 inches wide. The foliage is
green with a chartreuse to light yellow marginal variegation. Its leaves are
dull on top, flat and broadly ovate.
Narrow, pale lavender flowers
that are funnel shaped form on 36 inch tall scapes from late July into August.
Registration materials state, "...greens up as the season progresses..."
The Hostapedia by
Mark Zilis (2009), "The name 'Joker'
is still listed in some nursery catalogs, but I can see no
difference from 'Jester'."